钢筋混凝土异形柱结构弹塑性动力分析与基于性能的抗震设计研究-结构工程专业论文.docxVIP

钢筋混凝土异形柱结构弹塑性性能分析与纂于性熊的抗震设计研究l 钢筋混凝土异形柱结构弹塑性性能分析与纂于性熊的抗震设计研究 l 摘 要 t钢菸滋凝主器形柱獠榘结橡黻萁浚露柱棱、增麓有效使薅甏积、轻黧节毵、 符合墙体改革方向，近年来得到广泛的廒用。对异形柱缩构的试验研究已相当 多，雾慰箕弹塑’陡牲戆，尤其黯蔟在大震俸趸下麓菝震控麓懿壤论磅究滏显不 足。r本文取合肥蛾区某一典型住宅建筑平面，分别设计成矩形柱、异形柱和短 胺蘩力墙缝构，利恩CA／qNY程廖进舒了结搀褒7度移8度设耱馈援下缒三维 弹塑性时糕分析，并根攒结构在8度设防时已不能满足抗震要求的情况，考虑 了在异形棱结构纂础上添加支撑的异形糕框架．支撑结构体系。遴丽研究了不同 支撵设詈方案下缩构豹挽震佳能。 在基于性能的抗震设计中，结构地震反应的定量参数或指标可通过基于变 澎袋基予麓量麓其体诗冀方法来实瑷。变形或蕤璧翡诗舞登矮戳结秘静撵塑毪 性能分析为基础。文中对钢筋混凝土结构弹塑性时程分析中涉及到的杆件单元 模型选择、’茨复力模型确定等阉题终了系统攘述，蔹攥三维弹蘩牲黠程分辑戆 结果，综台比较了各种结构的抗震性能．可供类似结构设计时作参考。 时程分析工作量大，费时，对计算机性能要求较高，对分凝结果的译佑嚣 蝥较高的理论知识，不便于推广威用，设计人员需要一种简单实用的简化分析 方法。本文采用一种改进的能力谱方法对异形柱和异形柱框．撑结构进行了分 砉胥，并与辩程分橱结采进行了魄较。结采表臻，该方法匆辩程分析的分析结栗 相茬不大，可用予近似评估结构的抗震性能，是一种简单实用的方法。 力模墅、髋麓设计、能力谱洼，黧：嚣纛短羹戆、异形黼妊梅、时程赢杼系藩嶝^ 曩¨／ Elasto-Plastic Elasto-Plastic Dynamical Analysis of RC Special—Shaped Column Frame Structure and Performance—Based Seismic Design Research Abstract The frame structure with special—shaped column excels in no prominence on the wall，enlarging useful chamber area，lightweight，according with the direction of wall material reformation．There is much test research about special·shaped column frame structure，but SO lack about its elasto—plastic performance theory research in the strive earthquake．In this paper,the author chooses a representative building scheme，design the structure with RC flame，special·shaped column frame and short—leg shear wall．The author analysis 3-dimension elsato—plastic performance of three type of building structures in 7 and 8 defending intensity with the help of CANNY program．In the process，the author finds that the structure Call’t meet the regulation of seismic code in 8 defending intensity．So we adopt the flame structure with the special—shaped and bracing，and compare the structure seismic performance of several bracing—setting schemes． In Performance-Based Seismic design，the quantitative parameter of structural earthquake response can be gained according to the deformation-based or energy·based computation method．The computation of deformati